<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="app">
    <input type="text" v-focus="100">
  </div>

  <script src="./vue.js"></script>
  <script>
    // 全局指令
    /* Vue.directive("focus", {
      inserted(el,binding){
        console.log(el)
        console.log(binding)
        el.focus()
      }
    }) */
    const vm = new Vue({
      el: "#app",
      data: {
        num: 100
      },
      directives: {
        focus: {
          inserted(el, binding) {
            console.log(el)
            console.log(binding)
            el.focus()
          }
        }
      }
    })
  </script>
</body>

</html>
